Question #c41d4

1 Answer
The Lonely Donut
Nov 2, 2017

# a = 15 #

Explanation:

Since we have the value of # b # and an equation to solve, we can go ahead and substitute # b # into the equation:

# 5a - 10b = 45 #
# 5a - 10(3) = 45 #

From here, we simplify the equation and solve:

# 5a - 30 = 45 #
# 5a = 75 #
# a = 15 #

So the value of #a# is #15#.

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